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The spread of
HIV/AIDS Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual ...
has affected millions of people worldwide; AIDS is considered a pandemic. The
World Health Organization The World Health Organization (WHO) is a specialized agency of the United Nations responsible for international public health. The WHO Constitution states its main objective as "the attainment by all peoples of the highest possible level of ...
(WHO) estimated that in 2016 there were 36.7 million people worldwide living with HIV/AIDS, with 1.8 million new
HIV The human immunodeficiency viruses (HIV) are two species of ''Lentivirus'' (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immune ...
infections per year and 1 million deaths due to AIDS. Misconceptions about HIV and AIDS arise from several different sources, from simple ignorance and misunderstandings about scientific knowledge regarding HIV infections and the cause of AIDS to misinformation propagated by individuals and groups with ideological stances that deny a causative relationship between HIV infection and the development of AIDS. Below is a list and explanations of some common misconceptions and their rebuttals.


The relationship between HIV and AIDS


HIV is the same as AIDS

HIV is an acronym for
human immunodeficiency virus The human immunodeficiency viruses (HIV) are two species of ''Lentivirus'' (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immun ...
, which is the virus that causes AIDS (
acquired immunodeficiency syndrome Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual ma ...
). Contracting HIV can lead to the development of AIDS or stage 3 HIV, which causes serious damage to the immune system. While this virus is the underlying cause of AIDS, not all HIV-positive individuals have AIDS, as HIV can remain in a latent state for many years. If undiagnosed or left untreated, HIV usually progresses to AIDS, defined as possessing a CD4+ lymphocyte count under 200 cells/μl or HIV infection plus co-infection with an AIDS-defining opportunistic infection. HIV cannot be cured, but it can be treated, and its transmission can be halted. Treating HIV can prevent new infections, which is the key to ultimately defeating AIDS.


Treatment


Cure

Highly active anti-retroviral therapy The management of HIV/AIDS normally includes the use of multiple Antiviral drug, antiretroviral drugs as a strategy to control HIV/AIDS, HIV infection. There are several classes of antiretroviral agents that act on different stages of the HIV life- ...
(HAART) in many cases allows the stabilization of the patient's symptoms, partial recovery of CD4+
T-cell A T cell is a type of lymphocyte. T cells are one of the important white blood cells of the immune system and play a central role in the adaptive immune response. T cells can be distinguished from other lymphocytes by the presence of a T-cell r ...
levels, and reduction in
viremia Viremia is a medical condition where viruses enter the bloodstream and hence have access to the rest of the body. It is similar to ''bacteremia'', a condition where bacteria enter the bloodstream. The name comes from combining the word "virus" wit ...
(the level of virus in the blood) to low or near-undetectable levels. Disease-specific drugs can also alleviate symptoms of AIDS and even cure specific AIDS-defining conditions in some cases. Medical treatment can reduce HIV infection in many cases to a survivable chronic condition. However, these advances do not constitute a cure, since current treatment regimens cannot eradicate latent HIV from the body. High levels of HIV-1 (often HAART-resistant) develop if treatment is stopped, if compliance with treatment is inconsistent, or if the virus spontaneously develops resistance to an individual's regimen.
Antiretroviral treatment The management of HIV/AIDS normally includes the use of multiple antiretroviral drugs as a strategy to control HIV infection. There are several classes of antiretroviral agents that act on different stages of the HIV life-cycle. The use of multiple ...
known as
post-exposure prophylaxis Post-exposure prophylaxis, also known as post-exposure prevention (PEP), is any preventive medical treatment started after exposure to a pathogen in order to prevent the infection from occurring. COVID-19 In 2021, the FDA has approved bamlanivi ...
reduces the chance of acquiring an HIV infection when administered within 72 hours of exposure to HIV. However, an overwhelming body of clinical evidence has demonstrated the U=U rule - if someone's viral load is undetectable (<200 viral copies per mL) they are untransmissible. Essentially this means if a person living with HIV is well controlled on medications with a viral load less than 200, they cannot transmit HIV to their partners via sexual contact. The landmark study that first established this was the HPTN052 study, which looked at over 2000 couples over 10 years, where one partner was HIV positive, and the other partner was HIV negative.


Sexual intercourse with a virgin will cure AIDS

The myth that sex with a virgin will cure AIDS is prevalent in South Africa. Sex with an uninfected virgin does not cure an
HIV The human immunodeficiency viruses (HIV) are two species of ''Lentivirus'' (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immune ...
-infected person, and such contact will expose the uninfected individual to HIV, potentially further spreading the disease. This myth has gained considerable notoriety as the perceived reason for certain
sexual abuse Sexual abuse or sex abuse, also referred to as molestation, is abusive sexual behavior by one person upon another. It is often perpetrated using force or by taking advantage of another. Molestation often refers to an instance of sexual assa ...
and
child molestation Child sexual abuse (CSA), also called child molestation, is a form of child abuse in which an adult or older adolescent uses a child for sexual stimulation. Forms of child sexual abuse include engaging in sexual activities with a child (wheth ...
occurrences, including the rape of infants, in
South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
.


Sexual intercourse with an animal will avoid or cure AIDS

In 2002, the National Council of Societies for the Prevention of Cruelty to Animals (NSPCA) in
Johannesburg Johannesburg ( , , ; Zulu and xh, eGoli ), colloquially known as Jozi, Joburg, or "The City of Gold", is the largest city in South Africa, classified as a megacity, and is one of the 100 largest urban areas in the world. According to Demo ...
,
South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
, recorded beliefs amongst youths that sex with animals is a means to avoid AIDS or cure it if infected. As with "virgin cure" beliefs, there is no scientific evidence suggesting a sexual act can actually cure AIDS, and no plausible mechanism by which it could do so has ever been proposed. While the risk of contracting HIV via sex with animals is likely much lower than with humans due to HIV's inability to infect animals, the practice of bestiality still has the ability to infect humans with other fatal
zoonotic diseases A zoonosis (; plural zoonoses) or zoonotic disease is an infectious disease of humans caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite or prion) that has jumped from a non-human (usually a vertebrate) to a human. ...
.


HIV antibody testing is unreliable

Diagnosis Diagnosis is the identification of the nature and cause of a certain phenomenon. Diagnosis is used in many different disciplines, with variations in the use of logic, analytics, and experience, to determine " cause and effect". In systems engin ...
of
infection An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. An infectious disease, also known as a transmissible disease or communicable dise ...
using antibody testing is a well-established technique in
medicine Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care pract ...
. HIV
antibody An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. The antibody recognizes a unique molecule of the ...
tests exceed the performance of most other infectious disease tests in both sensitivity (the ability of the screening test to give a positive finding when the person tested truly has the disease) and specificity (the ability of the test to give a negative finding when the subjects tested are free of the disease under study). Many current HIV antibody tests have sensitivity and specificity in excess of 96% and are therefore extremely reliable. While most patients with HIV show an antibody response after six weeks, window periods vary and may occasionally be as long as three months. Progress in testing methodology has enabled detection of viral genetic material, antigens, and the virus itself in bodily fluids and cells. While not widely used for routine testing due to high cost and requirements in laboratory equipment, these direct testing techniques have confirmed the validity of the antibody tests. Positive HIV antibody tests are usually followed up by retests and tests for
antigen In immunology, an antigen (Ag) is a molecule or molecular structure or any foreign particulate matter or a pollen grain that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body may trigger an immune response. ...
s, viral genetic material and the virus itself, providing confirmation of actual infection.


HIV infection


HIV can be spread through casual contact with an HIV infected individual

One cannot become infected with HIV through normal contact in social settings, schools, or in the workplace. Other examples of casual contact in which HIV infection will not occur include shaking someone's hand, hugging or "dry" kissing someone, using the same
toilet A toilet is a piece of sanitary hardware that collects human urine and feces, and sometimes toilet paper, usually for disposal. Flush toilets use water, while dry or non-flush toilets do not. They can be designed for a sitting position popu ...
or drinking from the same glass as an HIV-infected person, and being exposed to
coughing A cough is a sudden expulsion of air through the large breathing passages that can help clear them of fluids, irritants, foreign particles and microbes. As a protective reflex, coughing can be repetitive with the cough reflex following three phas ...
or
sneezing A sneeze (also known as sternutation) is a semi-autonomous, convulsive expulsion of air from the lungs through the nose and mouth, usually caused by foreign particles irritating the nasal mucosa. A sneeze expels air forcibly from the mouth and ...
by an infected person.
Saliva Saliva (commonly referred to as spit) is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be ...
carries a negligible viral load, so even open-mouthed kissing is considered a low risk. However, if the infected partner or both of the performers have blood in their mouth due to cuts, open sores, or
gum disease Periodontal disease, also known as gum disease, is a set of inflammatory conditions affecting the tissues surrounding the teeth. In its early stage, called gingivitis, the gums become swollen and red and may bleed. It is considered the main caus ...
, the risk increases. The
Centers for Disease Control and Prevention The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency, under the Department of Health and Human Services, and is headquartered in Atlanta, Georgi ...
(CDC) has only recorded one case of possible HIV transmission through kissing (involving an HIV-infected man with significant gum disease and a sexual partner also with significant gum disease),"Kissing and HIV"
/ref> and the
Terence Higgins Trust Terrence Higgins Trust is a British charity that campaigns about and provides services relating to HIV and sexual health. In particular, the charity aims to end the transmission of HIV in the UK; to support and empower people living with HIV, to ...
says that this is essentially a no-risk situation. Other interactions that could ''theoretically'' result in person-to-person transmission include caring for
nose bleed A nosebleed, also known as epistaxis, is bleeding from the nose. Blood can flow down into the stomach, and cause nausea and vomiting. In more severe cases, blood may come out of both nostrils. Rarely, bleeding may be so significant that low bloo ...
s and home health care procedures, yet there are very few recorded incidents of transmission occurring in these ways. A handful of cases of transmission via biting have occurred, though this is extremely rare.


HIV-positive individuals can be detected by their appearance

Due to media images of the effects of AIDS, many people believe that individuals infected with HIV always appear a certain way, or at least appear different from an uninfected, healthy person. In fact, disease progression can occur over a long period of time before the onset of symptoms, and as such, HIV infections cannot be detected based on appearance.


HIV cannot be transmitted through oral sex

Contracting HIV through
oral sex Oral sex, sometimes referred to as oral intercourse, is sexual activity involving the stimulation of the genitalia of a person by another person using the mouth (including the lips, tongue, or teeth) and the throat. Cunnilingus is oral sex per ...
is possible, but it is much less likely than from
anal sex Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure.Sepages 270–271for anal sex information, anpage 118for information about the clitoris. ...
and penile–vaginal intercourse. No cases of such a transmission were observed in a sample of 8965 people performing receptive oral sex.


HIV is transmitted by mosquitoes

When
mosquito Mosquitoes (or mosquitos) are members of a group of almost 3,600 species of small flies within the family Culicidae (from the Latin ''culex'' meaning " gnat"). The word "mosquito" (formed by ''mosca'' and diminutive ''-ito'') is Spanish for "li ...
es bite a person, they do not inject the blood of a previous victim into the person they bite next. Mosquitoes do, however, inject their
saliva Saliva (commonly referred to as spit) is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be ...
into their victims, which may carry diseases such as
dengue fever Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Symptoms typically begin three to fourteen days after infection. These may include a high fever, headache, vomiting, muscle and joint pains, and a characterist ...
,
malaria Malaria is a mosquito-borne infectious disease that affects humans and other animals. Malaria causes symptoms that typically include fever, tiredness, vomiting, and headaches. In severe cases, it can cause jaundice, seizures, coma, or death. S ...
,
yellow fever Yellow fever is a viral disease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains – particularly in the back – and headaches. Symptoms typically improve within five days. In ...
, or
West Nile virus West Nile virus (WNV) is a single-stranded RNA virus that causes West Nile fever. It is a member of the family ''Flaviviridae'', from the genus ''Flavivirus'', which also contains the Zika virus, dengue virus, and yellow fever virus. The virus ...
and can infect a bitten person with these diseases. HIV is not transmitted in this manner. On the other hand, a mosquito may have HIV-infected blood in its gut, and if swatted on the skin of a human who then scratches it, transmission is hypothetically possible, though this risk is extremely small, and no cases have yet been identified through this route.


HIV survives for only a short time outside the body

HIV can survive at room temperature outside the body for hours if dry (provided that initial concentrations are high), and for weeks if wet (in used syringes/needles). However, the amounts typically present in bodily fluids do not survive nearly as long outside the body—generally no more than a few minutes if dry.


HIV can infect only homosexual men and drug users

HIV can transmit from one person to another if an engaging partner is HIV positive. In the United States, the main route of infection is via homosexual
anal sex Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure.Sepages 270–271for anal sex information, anpage 118for information about the clitoris. ...
, while for women transmission is primarily through heterosexual contact. It is true that anal sex (regardless of the sex of the receptive partner) carries a higher risk of infection than most sex acts, but most penetrative sex acts between any individuals carry some risk. Properly used
condom A condom is a sheath-shaped barrier device used during sexual intercourse to reduce the probability of pregnancy or a sexually transmitted infection (STI). There are both male and female condoms. With proper use—and use at every act of in ...
s can reduce this risk.


An HIV-infected female cannot have children

HIV-infected women remain fertile, although in late stages of HIV disease a pregnant woman may have a higher risk of
miscarriage Miscarriage, also known in medical terms as a spontaneous abortion and pregnancy loss, is the death of an embryo or fetus before it is able to survive independently. Miscarriage before 6 weeks of gestation is defined by ESHRE as biochemical lo ...
. Normally, the risk of transmitting HIV to the unborn child is between 15 and 30%. However, this may be reduced to just 2–3% if patients carefully follow medical guidelines.WHO, 2005
/ref>


HIV cannot be the cause of AIDS because the body develops a vigorous antibody response to the virus

This reasoning ignores numerous examples of
virus A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1 ...
es other than HIV that can be
pathogenic In biology, a pathogen ( el, πάθος, "suffering", "passion" and , "producer of") in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ ...
after evidence of
immunity Immunity may refer to: Medicine * Immunity (medical), resistance of an organism to infection or disease * ''Immunity'' (journal), a scientific journal published by Cell Press Biology * Immune system Engineering * Radiofrequence immunity desc ...
appears.
Measles Measles is a highly contagious infectious disease caused by measles virus. Symptoms usually develop 10–12 days after exposure to an infected person and last 7–10 days. Initial symptoms typically include fever, often greater than , cough, ...
virus may persist for years in
brain A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a v ...
cells, eventually causing a chronic neurologic disease despite the presence of
antibodies An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. The antibody recognizes a unique molecule of the ...
. Viruses such as ''
Cytomegalovirus ''Cytomegalovirus'' (''CMV'') (from ''cyto-'' 'cell' via Greek - 'container' + 'big, megalo-' + -''virus'' via Latin 'poison') is a genus of viruses in the order ''Herpesvirales'', in the family ''Herpesviridae'', in the subfamily ''Betaherpe ...
'', ''Herpes simplex'' virus, and ''
Varicella zoster Varicella-zoster virus (VZV), also known as human herpesvirus 3 (HHV-3, HHV3) or ''Human alphaherpesvirus 3'' (taxonomically), is one of nine known herpes viruses that can infect humans. It causes chickenpox (varicella) commonly affecting chil ...
'' may be activated after years of latency even in the presence of abundant antibodies. In other animals, viral relatives of HIV with long and variable latency periods, such as
visna virus ''Visna-maedi virus'' (also known as ''Visna virus'', ''Maedi-visna virus'' and ''Ovine lentivirus'') from the genus '' Lentivirus'' and subfamily ''Orthoretrovirinae'', is a retrovirus that causes encephalitis and chronic pneumonitis in shee ...
in
sheep Sheep or domestic sheep (''Ovis aries'') are domesticated, ruminant mammals typically kept as livestock. Although the term ''sheep'' can apply to other species in the genus ''Ovis'', in everyday usage it almost always refers to domesticated s ...
, cause
central nervous system The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain and spinal cord. The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all par ...
damage even after the production of antibodies."Disease Progression Despite Antibodies", "The Relationship Between the Human Immunodeficiency Virus and the Acquired Immunodeficiency Syndrome",
National Institute of Allergy and Infectious Diseases The National Institute of Allergy and Infectious Diseases (NIAID, ) is one of the 27 institutes and centers that make up the National Institutes of Health (NIH), an agency of the United States Department of Health and Human Services (HHS). NIAID's ...
, September, 1995
HIV has a well-recognized capacity to
mutate In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, mitos ...
to evade the ongoing immune response of the host.


Only a small number of CD4+ T-cells are infected by HIV, not enough to damage the immune system

Although the fraction of CD4+ T-cells that is infected with HIV at any given time is never high (only a small subset of activated cells serve as ideal targets of infection), several groups have shown that rapid cycles of death of infected cells and infection of new target cells occur throughout the course of the disease.
Macrophage Macrophages (abbreviated as M φ, MΦ or MP) ( el, large eaters, from Greek ''μακρός'' (') = large, ''φαγεῖν'' (') = to eat) are a type of white blood cell of the immune system that engulfs and digests pathogens, such as cancer cel ...
s and other cell types are also infected with HIV and serve as reservoirs for the virus. Furthermore, like other viruses, HIV is able to suppress the immune system by secreting proteins that interfere with it. For example, HIV's coat protein,
gp120 Envelope glycoprotein GP120 (or gp120) is a glycoprotein exposed on the surface of the HIV envelope. It was discovered by Professors Tun-Hou Lee and Myron "Max" Essex of the Harvard School of Public Health in 1988. The 120 in its name comes from ...
, sheds from viral particles and binds to the CD4 receptors of otherwise healthy T-cells; this interferes with the normal function of these signalling receptors. Another HIV protein, Tat, has been demonstrated to suppress T cell activity. Infected lymphocytes express the Fas ligand, a cell-surface protein that triggers the death of neighboring uninfected T-cells expressing the
Fas receptor The Fas receptor, also known as Fas, FasR, apoptosis antigen 1 (APO-1 or APT), cluster of differentiation 95 (CD95) or tumor necrosis factor receptor superfamily member 6 (TNFRSF6), is a protein that in humans is encoded by the ''FAS'' gene. Fas ...
. This "bystander killing" effect shows that great harm can be caused to the immune system even with a limited number of infected cells.


History of HIV/AIDS

The current consensus is that HIV was introduced to North America by a Haitian immigrant who contracted it while working in the
Democratic Republic of the Congo The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...
in the early 1960s, or from another person who worked there during that time. In 1981 on June 5, the U.S. Centers for Disease Control and Prevention (CDC) published a ''Morbidity and Mortality Weekly Report'' (MMWR) describing cases of a rare lung infection, Pneumocystis carinii pneumonia (PCP), in five healthy
gay men Gay men are male homosexuals. Some bisexual and homoromantic men may also dually identify as gay, and a number of young gay men also identify as queer. Historically, gay men have been referred to by a number of different terms, including ' ...
in Los Angeles. This edition would later become ''MMWR's'' first official reporting of the AIDS epidemic in North America. By year-end, a cumulative total of 337 cases of severe immune deficiency had been reported, and 130 out of the 337 reported cases had died. On September 24, 1982, the CDC used the term "AIDS" (acquired immune deficiency syndrome) for the first time, and released the first case definition of AIDS: "a disease at least moderately predictive of a defect in cell-mediated immunity, occurring in a person with no known case for diminished resistance to that disease." The March 4, 1983 edition of the ''Morbidity and Mortality Weekly Report'' (MMWR) noted that most cases of AIDS had been reported among homosexual men with multiple sexual partners, injection drug users, Haitians, and hemophiliacs. The report suggested that AIDS may be caused by an infectious agent that is transmitted sexually or through exposure to blood or blood products, and issued recommendations for preventing transmission. Although most cases of HIV/AIDS were discovered in gay men, on January 7, 1983, the CDC reported cases of AIDS in female sexual partners of males with AIDS. In 1984, scientists identified the virus that causes AIDS, which was first named after the T-cells affected by the strain and is now called HIV or human immunodeficiency virus.


Origin of AIDS through human–monkey sexual intercourse

While HIV is most likely a mutated form of
simian immunodeficiency virus ''Simian immunodeficiency virus'' (''SIV'') is a species of retrovirus that cause persistent infections in at least 45 species of non-human primates. Based on analysis of strains found in four species of monkeys from Bioko Island, which was isola ...
(SIV), a disease present only in chimpanzees and African monkeys, highly plausible explanations for the transfer of the disease between species (
zoonosis A zoonosis (; plural zoonoses) or zoonotic disease is an infectious disease of humans caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite or prion) that has jumped from a non-human (usually a vertebrate) to a human. ...
) exist not involving
sexual intercourse Sexual intercourse (or coitus or copulation) is a sexual activity typically involving the insertion and thrusting of the penis into the vagina for sexual pleasure or reproduction.Sexual intercourse most commonly means penile–vaginal penetrat ...
. In particular, the African chimpanzees and monkeys which carry SIV are often hunted for food, and epidemiologists theorize that the disease may have appeared in humans after hunters came into blood-contact with monkeys infected with SIV that they had killed. The first known instance of HIV in a human was found in a person who died in the
Democratic Republic of the Congo The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...
in 1959, and a recent study dates the last common ancestor of HIV and SIV to between 1884 and 1914 by using a
molecular clock The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleoti ...
approach.
Tennessee State Senator The Tennessee Senate is the upper house of the U.S. state of Tennessee , Tennessee's state legislature, which is known formally as the Tennessee General Assembly. The Tennessee Senate has the power to pass resolutions concerning essentially any ...
Stacey Campfield Stacey Campfield (born June 8, 1968) is an American politician. He served as the Republican member of the Tennessee Senate from the 7th district, including Knoxville, Farragut, University of Tennessee, Powell and other parts of Knox County. ...
was the subject of controversy in 2012 after stating that AIDS was the result of a human having sexual intercourse with a monkey.


Gaëtan Dugas as "patient zero"

The Canadian flight attendant Gaëtan Dugas has been referred to as " patient zero" of the HIV/AIDS epidemic, meaning the first case of HIV/AIDS in the United States. In fact, the "patient zero" moniker originated from a misinterpretation of a 1984 study that referred to Dugas as "patient O", where the O stood for "out of California". A 2016 study published in ''
Nature Nature, in the broadest sense, is the physics, physical world or universe. "Nature" can refer to the phenomenon, phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. ...
'' found "neither biological nor historical evidence that ugaswas the primary case in the US or for subtype B as a whole."


AIDS denialism


There is no AIDS in Africa, as AIDS is nothing more than a new name for old diseases

The diseases that have come to be associated with
AIDS in Africa HIV/AIDS originated in Africa in the early 20th century and is a major public health concern and cause of death in many African countries. AIDS rates vary significantly between countries, though the majority of cases are concentrated in Southern ...
, such as
cachexia Cachexia () is a complex syndrome associated with an underlying illness, causing ongoing muscle loss that is not entirely reversed with nutritional supplementation. A range of diseases can cause cachexia, most commonly cancer, congestive heart f ...
, diarrheal diseases and
tuberculosis Tuberculosis (TB) is an infectious disease usually caused by '' Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of the body. Most infections show no symptoms, in ...
have long been severe burdens there. However, high rates of
mortality Mortality is the state of being mortal, or susceptible to death; the opposite of immortality. Mortality may also refer to: * Fish mortality, a parameter used in fisheries population dynamics to account for the loss of fish in a fish stock throug ...
from these diseases, formerly confined to the elderly and malnourished, are now common among HIV-infected young and
middle-age In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...
d people, including well-educated members of the
middle class The middle class refers to a class of people in the middle of a social hierarchy, often defined by occupation, income, education, or social status. The term has historically been associated with modernity, capitalism and political debate. Commo ...
.UNAIDS, 2000 For example, in a study in
Côte d'Ivoire Ivory Coast, also known as Côte d'Ivoire, officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital is Yamoussoukro, in the centre of the country, while its largest city and economic centre is ...
, HIV-
seropositive Serostatus refers to the presence or absence of a serological marker in the blood. The presence of detectable levels of a specific marker within the serum is considered seropositivity, while the absence of such levels is considered seronegativity. ...
individuals with
pulmonary tuberculosis Tuberculosis (TB) is an infectious disease usually caused by ''Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of the body. Most infections show no symptoms, in w ...
were 17 times more likely to die within six months than HIV-seronegative individuals with pulmonary tuberculosis. In
Malawi Malawi (; or aláwi Tumbuka: ''Malaŵi''), officially the Republic of Malawi, is a landlocked country in Southeastern Africa that was formerly known as Nyasaland. It is bordered by Zambia to the west, Tanzania to the north and northeast ...
, mortality over three years among children who had received recommended childhood
immunization Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an infectious agent (known as the immunogen). When this system is exposed to molecules that are foreign to the body, called ''non-sel ...
s and who survived the first year of life was 9.5 times higher among HIV-seropositive children than among HIV-seronegative children. The leading causes of death were wasting and respiratory conditions. Elsewhere in Africa, findings are similar.


HIV is not the cause of AIDS

There is broad
scientific consensus Scientific consensus is the generally held judgment, position, and opinion of the majority or the supermajority of scientists in a particular field of study at any particular time. Consensus is achieved through scholarly communication at confe ...
that HIV is the cause of AIDS, but some individuals reject this consensus, including biologist
Peter Duesberg Peter H. Duesberg (born December 2, 1936) is a German-American molecular biologist and a professor of molecular and cell biology at the University of California, Berkeley. He is known for his early research into the genetic aspects of cancer. He ...
, biochemist David Rasnick, journalist/activist
Celia Farber Celia Ingrid Farber (born c. 1965) is an American print journalist and author who has covered a range of topics for magazines including ''Spin'', ''Rolling Stone'', ''Esquire'', '' Harper's'', ''Interview'', ''Salon'', ''Gear (magazine), Gear'', ...
, conservative writer
Tom Bethell Tom Bethell (; July 17, 1936 – February 12, 2021) was an American journalist who wrote mainly on economic and scientific issues. Life and career Bethell was born and raised in London, England. He was educated at Downside School and Trini ...
, and
intelligent design Intelligent design (ID) is a pseudoscientific argument for the existence of God, presented by its proponents as "an evidence-based scientific theory about life's origins". Numbers 2006, p. 373; " Dcaptured headlines for its bold attempt to ...
advocate Phillip E. Johnson. (Some one-time skeptics have since rejected AIDS denialism, including physiologist
Robert Root-Bernstein Robert Root-Bernstein (born August 7, 1953) ( PhD, Princeton University) is a professor of physiology at Michigan State University. In 1981, he was awarded a MacArthur Fellowship, commonly known as a "genius grant." He has also researched and cons ...
, and physician and AIDS researcher Joseph Sonnabend.) A great deal is known about the
pathogenesis Pathogenesis is the process by which a disease or disorder develops. It can include factors which contribute not only to the onset of the disease or disorder, but also to its progression and maintenance. The word comes from Greek πάθος ''pat ...
of HIV disease, even though important details remain to be elucidated. However, a complete understanding of the pathogenesis of a disease is not a prerequisite to knowing its cause. Most infectious agents have been associated with the disease they cause long before their pathogenic mechanisms have been discovered. Because research in pathogenesis is difficult when precise animal models are unavailable, the disease-causing mechanisms in many diseases, including
tuberculosis Tuberculosis (TB) is an infectious disease usually caused by '' Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of the body. Most infections show no symptoms, in ...
and
hepatitis B Hepatitis B is an infectious disease caused by the ''Hepatitis B virus'' (HBV) that affects the liver; it is a type of viral hepatitis. It can cause both acute and chronic infection. Many people have no symptoms during an initial infection. Fo ...
, are poorly understood, but the pathogens responsible are very well established.


AZT and other antiretroviral drugs, not HIV, cause AIDS

The vast majority of people with AIDS never received antiretroviral drugs, including those in developed countries prior to the licensure of
AZT Zidovudine (ZDV), also known as azidothymidine (AZT), is an antiretroviral medication used to prevent and treat HIV/AIDS. It is generally recommended for use in combination with other antiretrovirals. It may be used to prevent mother-to-child ...
in 1987. Even today, very few individuals in developing countries have access to these medications.UNAIDS, 2003
In the 1980s,
clinical trial Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments (such as novel vaccines, drugs, dietar ...
s enrolling patients with AIDS found that AZT given as single-drug therapy conferred a survival advantage compared to
placebo A placebo ( ) is a substance or treatment which is designed to have no therapeutic value. Common placebos include inert tablets (like sugar pills), inert injections (like Saline (medicine), saline), sham surgery, and other procedures. In general ...
, albeit modest and short-lived. Among HIV-infected patients who had not yet developed AIDS, placebo-controlled trials found that AZT given as a single-drug therapy delayed, for a year or two, the onset of AIDS-related illnesses. The lack of excess AIDS cases and death in the AZT arms of these placebo-controlled trials effectively counters the argument that AZT causes AIDS. Subsequent clinical trials found that patients receiving two-drug combinations had up to 50% increases in time to progression to AIDS and in survival when compared to people receiving single-drug therapy. In more recent years, three-drug combination therapies have produced another 50–80% improvements in progression to AIDS and in survival when compared to two-drug regimens in clinical trials. Use of potent anti-HIV combination therapies has contributed to dramatic reductions in the incidence of AIDS and AIDS-related deaths in populations where these drugs are widely available, an effect which would be unlikely if antiretroviral drugs ''caused'' AIDS.


Behavioral factors such as recreational drug use and multiple sexual partners—not HIV—account for AIDS

The proposed behavioral causes of AIDS, such as multiple sexual partners and long-term
recreational drug use Recreational drug use indicates the use of one or more psychoactive drugs to induce an altered state of consciousness either for pleasure or for some other casual purpose or pastime by modifying the perceptions and emotions of the user. When a ...
, have existed for many years. The epidemic of AIDS, characterized by the occurrence of formerly rare opportunistic infections such as ''
Pneumocystis carinii ''Pneumocystis jirovecii'' (previously ''P. carinii'') is a yeast-like fungus of the genus ''Pneumocystis''. The causative organism of ''Pneumocystis'' pneumonia, it is an important human pathogen, particularly among immunocompromised hosts. P ...
'' pneumonia (PCP), did not occur in the United States until a previously unknown human
retrovirus A retrovirus is a type of virus that inserts a DNA copy of its RNA genome into the DNA of a host cell that it invades, thus changing the genome of that cell. Once inside the host cell's cytoplasm, the virus uses its own reverse transcriptase ...
—HIV—spread through certain communities. Compelling evidence against the hypothesis that behavioral factors cause AIDS comes from recent studies that have followed cohorts of
homosexual Homosexuality is romantic attraction, sexual attraction, or sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality is "an enduring pattern of emotional, romantic, and/or sexual attractions" to peop ...
men for long periods of time and found that only HIV-seropositive men develop AIDS. For example, in a prospectively studied cohort in
Vancouver, British Columbia Vancouver ( ) is a major city in western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the ...
, 715 homosexual men were followed for a median of 8.6 years. Among 365 HIV-positive individuals, 136 developed AIDS. No AIDS-defining illnesses occurred among 350 seronegative men, despite the fact that these men reported appreciable use of nitrite inhalants ("poppers") and other recreational drugs, and frequent receptive
anal intercourse Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure.Sepages 270–271for anal sex information, anpage 118for information about the clitoris. Ot ...
(Schechter et al., 1993). Other studies show that among homosexual men and injection-drug users, the specific immune deficit that leads to AIDS—a progressive and sustained loss of CD4+
T-cell A T cell is a type of lymphocyte. T cells are one of the important white blood cells of the immune system and play a central role in the adaptive immune response. T cells can be distinguished from other lymphocytes by the presence of a T-cell r ...
s—is extremely rare in the absence of other immunosuppressive conditions. For example, in the
Multicenter AIDS Cohort Study The Multicenter AIDS Cohort Study (MACS) is an ongoing cohort study involving over 6,000 men, including both those infected with HIV, as well as HIV-negative men. The MACS has four main sites: Baltimore, Pittsburgh, Los Angeles, and Chicago. The Lo ...
, more than 22,000 T-cell determinations in 2,713 HIV-seronegative homosexual men revealed only one individual with a CD4+ T-cell count persistently lower than 300 cells/µl of blood, and this individual was receiving
immunosuppressive therapy Immunosuppression is a reduction of the activation or efficacy of the immune system. Some portions of the immune system itself have immunosuppressive effects on other parts of the immune system, and immunosuppression may occur as an adverse react ...
. In a survey of 229 HIV-seronegative injection-drug users in
New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
, mean CD4+ T-cell counts of the group were consistently more than 1000 cells/µl of blood. Only two individuals had two CD4+ T-cell measurements of less than 300/µl of blood, one of whom died with cardiac disease and
non-Hodgkin's lymphoma Non-Hodgkin lymphoma (NHL), also known as non-Hodgkin's lymphoma, is a group of blood cancers that includes all types of lymphomas except Hodgkin lymphomas. Symptoms include lymphadenopathy, enlarged lymph nodes, fever, night sweats, weight los ...
listed as the cause of death.


AIDS among transfusion recipients is due to underlying diseases that necessitated the transfusion, rather than to HIV

This notion is contradicted by a report by the Transfusion Safety Study Group (TSSG), which compared HIV-negative and HIV-positive blood recipients who had been given
blood transfusions Blood transfusion is the process of transferring blood products into a person's circulation intravenously. Transfusions are used for various medical conditions to replace lost components of the blood. Early transfusions used whole blood, but mod ...
for similar diseases. Approximately 3 years following blood transfusion, the mean CD4+ T-cell count in 64 HIV-negative recipients was 850/µl of blood, while 111 HIV-seropositive individuals had average CD4+ T-cell counts of 375/µl of blood. By 1993, there were 37 cases of AIDS in the HIV-infected group, but not a single AIDS-defining illness in the HIV-seronegative transfusion recipients.


High usage of clotting factor concentrate, not HIV, leads to CD4+ T-cell depletion and AIDS in hemophiliacs

This view is contradicted by many studies. For example, among HIV-seronegative patients with
hemophilia A Haemophilia A (or hemophilia A) is a genetic deficiency in clotting factor VIII, which causes increased bleeding and usually affects males. In the majority of cases it is inherited as an X-linked recessive trait, though there are cases which arise ...
enrolled in the Transfusion Safety Study, no significant differences in CD4+ T-cell counts were noted between 79 patients with no or minimal factor treatment and 52 with the largest amount of lifetime treatments. Patients in both groups had CD4+ T-cell-counts within the normal range. In another report from the Transfusion Safety Study, no instances of AIDS-defining illnesses were seen among 402 HIV-seronegative hemophiliacs who had received factortherapy. In a cohort in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
, researchers matched 17 HIV-seropositive
hemophiliac Haemophilia, or hemophilia (), is a mostly inherited genetic disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding. This results in people bleeding for a longer time after an injury, easy bruising, ...
s with 17 HIV-seronegative hemophiliacs with regard to clotting factor concentrate usage over a ten-year period. During this time, 16 AIDS-defining clinical events occurred in 9 patients, all of whom were HIV-seropositive. No AIDS-defining illnesses occurred among the HIV-negative patients. In each pair, the mean CD4+ T-cell count during follow-up was, on average, 500 cells/µl lower in the HIV-seropositive patient. Among HIV-infected hemophiliacs, Transfusion Safety Study investigators found that neither the purity nor the amount of factor VIII therapy had a deleterious effect on CD4+ T-cell counts. Similarly, the Multicenter Hemophilia Cohort Study found no association between the cumulative dose of plasma concentrate and incidence of AIDS among HIV-infected hemophiliacs.


The distribution of AIDS cases casts doubt on HIV as the cause. Viruses are not gender-specific, yet only a small proportion of AIDS cases are among women

The distribution of AIDS cases, whether in the United States or elsewhere in the world, invariably mirrors the prevalence of HIV in a population. In the United States, HIV first appeared in populations of injection-drug users (a majority of whom are male) and
gay ''Gay'' is a term that primarily refers to a homosexual person or the trait of being homosexual. The term originally meant 'carefree', 'cheerful', or 'bright and showy'. While scant usage referring to male homosexuality dates to the late 1 ...
men. HIV is spread primarily through unprotected sex, the exchange of HIV-contaminated needles, or cross-contamination of the drug solution and infected blood during intravenous drug use. Because these behaviors show a gender skew—Western men are more likely to take illegal drugs intravenously than Western women, and men are more likely to report higher levels of the riskiest sexual behaviors, such as unprotected
anal intercourse Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure.Sepages 270–271for anal sex information, anpage 118for information about the clitoris. Ot ...
—it is not surprising that a majority of U.S. AIDS cases have occurred in men. Women in the United States, however, are increasingly becoming HIV-infected, usually through the exchange of HIV-contaminated needles or sex with an HIV-infected male. The
CDC The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency, under the Department of Health and Human Services, and is headquartered in Atlanta, Georgi ...
estimates that 30 percent of new HIV infections in the United States in 1998 were in women. As the number of HIV-infected women has risen, so too has the number of female AIDS patients in the United States. Approximately 23% of U.S. adult/adolescent AIDS cases reported to the CDC in 1998 were among women. In 1998, AIDS was the fifth leading cause of death among women aged 25 to 44 in the United States, and the third leading cause of death among African-American women in that age group. In Africa, HIV was first recognized in sexually active
heterosexual Heterosexuality is romantic attraction, sexual attraction or sexual behavior between people of the opposite sex or gender. As a sexual orientation, heterosexuality is "an enduring pattern of emotional, romantic, and/or sexual attractions" to ...
s, and AIDS cases in Africa have occurred at least as frequently in women as in men. Overall, the worldwide distribution of HIV infection and AIDS between men and women is approximately 1 to 1. In
sub-Saharan Africa Sub-Saharan Africa is, geographically, the area and regions of the continent of Africa that lies south of the Sahara. These include West Africa, East Africa, Central Africa, and Southern Africa. Geopolitically, in addition to the List of sov ...
, 57% of adults with HIV are women, and young women aged 15 to 24 are more than three times as likely to be infected as young men.UNAIDS, 2005
/ref>


HIV is not the cause of AIDS because many individuals with HIV have not developed AIDS

HIV infections have a prolonged and variable course. The median period of time between infection with HIV and the onset of clinically apparent disease is approximately 10 years in
industrialized countries A developed country (or industrialized country, high-income country, more economically developed country (MEDC), advanced country) is a sovereign state that has a high quality of life, developed economy and advanced technological infrastruct ...
, according to prospective studies of homosexual men in which dates of
seroconversion In immunology, seroconversion is the development of specific antibodies in the blood serum as a result of infection or immunization, including vaccination. During infection or immunization, antigens enter the blood, and the adaptive immune system ...
are known. Similar estimates of asymptomatic periods have been made for HIV-infected blood-transfusion recipients, injection-drug users and adult hemophiliacs. As with many diseases, a number of factors can influence the course of HIV disease. Factors such as age or genetic differences between individuals, the level of virulence of the individual strain of virus, as well as exogenous influences such as co-infection with other microbes may determine the rate and severity of HIV disease expression. Similarly, some people infected with
hepatitis B Hepatitis B is an infectious disease caused by the ''Hepatitis B virus'' (HBV) that affects the liver; it is a type of viral hepatitis. It can cause both acute and chronic infection. Many people have no symptoms during an initial infection. Fo ...
, for example, show no symptoms or only
jaundice Jaundice, also known as icterus, is a yellowish or greenish pigmentation of the skin and sclera due to high bilirubin levels. Jaundice in adults is typically a sign indicating the presence of underlying diseases involving abnormal heme meta ...
and clear their infection, while others suffer disease ranging from chronic
liver The liver is a major Organ (anatomy), organ only found in vertebrates which performs many essential biological functions such as detoxification of the organism, and the Protein biosynthesis, synthesis of proteins and biochemicals necessary for ...
inflammation to
cirrhosis Cirrhosis, also known as liver cirrhosis or hepatic cirrhosis, and end-stage liver disease, is the impaired liver function caused by the formation of scar tissue known as fibrosis due to damage caused by liver disease. Damage causes tissue repai ...
and hepatocellular carcinoma. Co-factors probably also determine why some smokers develop
lung cancer Lung cancer, also known as lung carcinoma (since about 98–99% of all lung cancers are carcinomas), is a malignant lung tumor characterized by uncontrolled cell growth in tissue (biology), tissues of the lung. Lung carcinomas derive from tran ...
while others do not.


HIV is not the cause of AIDS because some people have symptoms associated with AIDS but are not infected with HIV

Most AIDS symptoms result from the development of
opportunistic infection An opportunistic infection is an infection caused by pathogens (bacteria, fungi, parasites or viruses) that take advantage of an opportunity not normally available. These opportunities can stem from a variety of sources, such as a weakened immune ...
s and
cancer Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal b ...
s associated with severe
immunosuppression Immunosuppression is a reduction of the activation or efficacy of the immune system. Some portions of the immune system itself have immunosuppressive effects on other parts of the immune system, and immunosuppression may occur as an adverse react ...
secondary to HIV. However, immunosuppression has many other potential causes. Individuals who take
glucocorticoid Glucocorticoids (or, less commonly, glucocorticosteroids) are a class of corticosteroids, which are a class of steroid hormones. Glucocorticoids are corticosteroids that bind to the glucocorticoid receptor that is present in almost every vertebr ...
s or immunosuppressive drugs to prevent transplant rejection or to treat
autoimmune disease An autoimmune disease is a condition arising from an abnormal immune response to a functioning body part. At least 80 types of autoimmune diseases have been identified, with some evidence suggesting that there may be more than 100 types. Nearly a ...
s can have increased susceptibility to unusual infections, as do individuals with certain genetic conditions, severe
malnutrition Malnutrition occurs when an organism gets too few or too many nutrients, resulting in health problems. Specifically, it is "a deficiency, excess, or imbalance of energy, protein and other nutrients" which adversely affects the body's tissues a ...
and certain kinds of cancers. There is no evidence suggesting that the numbers of such cases have risen, while abundant
epidemiologic Epidemiology is the study and analysis of the distribution (who, when, and where), patterns and determinants of health and disease conditions in a defined population. It is a cornerstone of public health, and shapes policy decisions and evidenc ...
evidence shows a very large rise in cases of immunosuppression among individuals who share one characteristic: HIV infection.


The spectrum of AIDS-related infections seen in different populations proves that AIDS is actually many diseases not caused by HIV

The diseases associated with AIDS, such as ''Pneumocystis jiroveci'' pneumonia (PCP) and ''Mycobacterium avium'' complex (MAC), are not caused by HIV, but rather result from the immunosuppression caused by HIV disease. As the immune system of an HIV-infected individual weakens, he or she becomes susceptible to the particular viral,
fungal A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from th ...
, and
bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...
l infections common in the community. For example, HIV-infected people in the
Midwestern United States The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four census regions of the United States Census Bureau (also known as "Region 2"). It occupies the northern central part of the United States. I ...
are much more likely than people in
New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
to develop
histoplasmosis Histoplasmosis is a fungal infection caused by ''Histoplasma capsulatum''. Symptoms of this infection vary greatly, but the disease affects primarily the lungs. Occasionally, other organs are affected; called disseminated histoplasmosis, it can ...
, which is caused by a fungus. A person in Africa is exposed to pathogens different from individuals in an American city. Children may be exposed to different infectious agents compared to adults. HIV is the underlying cause of the condition named AIDS, but the additional conditions that may affect an AIDS patient are dependent upon the
endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
pathogens In biology, a pathogen ( el, πάθος, "suffering", "passion" and , "producer of") in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ ...
to which the patient may be exposed.


AIDS can be prevented with complementary or alternative medicine

Many HIV-infected people turn to complementary and
alternative medicine Alternative medicine is any practice that aims to achieve the healing effects of medicine despite lacking biological plausibility, testability, repeatability, or evidence from clinical trials. Complementary medicine (CM), complementary and alt ...
, such as traditional medicine, especially in areas where conventional therapies are less widespread. However, the overwhelming majority of scientifically rigorous research indicates little or negative effect on patient outcomes such as HIV-symptom severity and disease duration, and mixed outcomes on psychological well-being. It is important that patients notify their healthcare provider prior to beginning any treatment, as certain alternative therapies may interfere with conventional treatment.


See also

*
International AIDS Society The International AIDS Society (IAS) is the world's largest association of HIV/AIDS professionals, with 11,600 members from over 170 countries , including clinicians, people living with HIV, service providers, policy makers and others. It aims to ...
*
Safe sex Safe sex is sexual activity using methods or contraceptive devices (such as condoms) to reduce the risk of transmitting or acquiring sexually transmitted infections (STIs), especially HIV. "Safe sex" is also sometimes referred to as safer se ...
*
Contaminated haemophilia blood products Contaminated hemophilia blood products were a serious public health problem in the late 1970s up to 1985. These products caused large numbers of hemophiliacs to become infected with HIV and hepatitis C. The companies involved included Alpha Therap ...
*
Prevention of HIV/AIDS HIV prevention refers to practices that aim to prevent the spread of the human immunodeficiency virus (HIV). HIV prevention practices may be undertaken by individuals to protect their own health and the health of those in their community, or may ...


References


External links


HIV.gov – The U.S. Federal Domestic HIV/AIDS Resource


at
Centers for Disease Control and Prevention The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency, under the Department of Health and Human Services, and is headquartered in Atlanta, Georgi ...
{{DEFAULTSORT:Hiv And Aids Misconceptions
HIV and AIDS Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual m ...
HIV/AIDS HIV/AIDS denialism